Wrapping machine



Nov. 29, 1927;

D. D. PARKER WRAPPING MACHINE 61cm maq D. D. PARKER WRAPPING MACHINENov. 29, 1927. 1,650,803

Filed Aug. 24,1923 5 Sheets-Sheet 2 D. D. PARKER WRAPPINF MACHINE Nov..29, 1927.

Filed Aug. 24, 1923 3 Sheets-Sheet 3 7 handling straight orflattenedcans, and even a with this typelof can. the closure of thePatented Nov. 2!);1927.

a UNITE-o s T, @TES 1 PA ar a listener n PARKER, or Etna, YORK, assienon'10- nun/r nacnrnn COIVIPiANYi INCORPORATED, A CORPORATION OF MARYLAND.

WRAPPING irracnrivn,

Application filed Augusta, 1923. Serial no. 659,063.

This invention is an improvement on the 3 machine described and shownYin, United States Patent no. 696 218, March th, 1902,

to lvhitehurst, et a], This patent is entitled Labelling "inachinethough the machine which it describes-end shows might more properly betermed awrapper than a labeller'in that it Wraps and folds a paper coverwhich entirely enclosesthe cansboth as to their cylindrical sides andthe flat endsjas distinguished from the labelling machines whichmerely'roll or Wind a strip of paper which serves asa lahel about thecylindrical surfaces of thecansr I The machine referred to operatessomewhat after the-mannerof alabellerin that a the cylindrical cans arerolledthroughthemachine by contact Withan endless beltjand as they pass,each can picks u a sheet of paper or wrapper, which is Wound or rolledabout the cylindrical surfaceasthe can rolls forward along the Ways; butthe Wrapper. difi'ers from theaordinary laheller in that the I p theaisofthe pre'sse'r roller forming part fof my irnprovernent,

or turning the edges of the paper in to.

cover the circular ends of the cans. I a

The present invention relates tojthis featurelof. the machine, i. e., tothe mechanism for folding andnipressing the edges of. the paper thusturned in tocover the ends of the cans.

tori-ed to, is, however, merely adapted/tor \vrapper formed by turningin the edgeportions over the circular ends ofthe cans, Was

not quite sufliciently rolled and pressed to give in each and everypresentahlepaokage. pp The object ot the' presentinventionist0 produce amachine or tosoimprovethemainstance a neat and chines in existence thatthey will IEOlClfELn (l press the paper about; the ends, giving a j I Ip 7 .EZ spaced slightly Lapart for propelling the 1 cans through thei''nachine for the greater "portion of the? length thereof, and a centrala feed helti3 which. engages the cans nearthe; end Off the traverse,bringing them into the depression in theends, such as the sanitary cansand other canalarge numbers ofjvvhich are made Wit-lTSLtCh a depression;a slight do pression being produced? in practically all; cans by thevacuum incident to cooling,l so" that even with the supposedxflat-endedcans "cans. i

In the accompanying draWingI haveillus trated a machineembodylng myinvention side 'elev'ation showing the front'or delivery inFigurel, isin structure and generaloperthewrapping op' afl .i apt t6 be ogre orless defectiveWit-h the oldmachineon ac I v i count of failure toproperly press the wra is folded over theends of: the -Y per: when p thepreferred form.

In t lrawing Figure 1 isa fragmentary 'end portion ofthe' machine.

Figure 2 is an elevation looking atthe machine from the right as it isseen inlFigure 1, 1. e., affront end elevat on.

Figure 3 is a slightly enlarged View correspending to Figure 1, apartially wrapped it can 'inthe process of pressing the Wrapper at theends being shown in the grip ofthe rollers, the can and jwrapper beingsectioned for convenience of illustration and the view being brokenawayfa's to both the can and the roller, only one roller being shown.

Figured is a sectio'ntak-en on a plane'of Figureh is asectionthrough'theroller on i Figureh s a section showing one of the"end oftheapresserrollerspindle,and

Referring to the dravvin'gby numerals,

machine which a is i'r'a'gmentarily illustrated deliveryrollers, thesame heingtak'ennona 5 OfftheaXiS. I l I I v Figure-7 isan elevationshovvingtheman- V a a a neeermeunan and supporting the upper'llhemachine illustratedjin the pat/ent're 1 a- Figure an a plan ofthesa-rne. a

ation substantiallythe' same as 'thatshovvn i f in'the patent abovecited, in that it has-longitudinally extending Ways, ,1, along which thecans :roll, propelled a feed belt 2 which engages them lfrom; above. Inthe present instance there are two feedi belts =2,

hiteof the delivery rollers 4, see" particubelts 2,. ,i2 p nc the shaft;ather e f, [to

, inches back of the pulleys'l', 8 and so placed 7 that the bottom reachof the delivery feed I belt is" but slightly above the level of the'sp1ndle 25 carr1esnear its upper enda sleeve "34, which'is'circuinferentially grooved at 35,

operative portion or, ottoin reach of the "mil-ill feed belts 2. 2.

. kGo operating with the delivery belt is 'a yl?1ding t an, support flOVhlCl'l is" vplaced parallel i to and between the ways 1, being .p ivgtallygnounted on bolt 11 seatedin'the frame and extending"transversely. ,lAs

V sho wn; the support is in the, form. of la y deverwwhich fextendsLboth forwardly and rearwardlyiiem thqpivotal bolt lL; Theforward end of the. member 10 is: supported 1 on ,a'hellica'l spring 13in asuitablesp'ring socket 141: secured-to'the frame, the spring beingcentered and aligned byineans'of a spin 15" whic h is. vertically placedin the socket and surrounded-hy-the spring, the,

upperendof the pin being threaded into u'the s upportfatslfi and'thelower endof the j pin'being'pas sed through an opening 17in ,tlie bottomof the socket through which it jpass es-frejlyflhe upward niotion of thepin :5: {being limited by nuts l8 threaded on its lower.fendoutside thesocket, and hearing against the portion of the socket adjacent theopening. The forward end of, thesup port includes a; raised portion orhill 19 over i which the cans passintothegrlp of the de- .liveryrollers'ashereinafter described, .The

delive'i yrbelt,engagesflthe -can packages firmly as these arethen'raised bythesupport.

, y 'gAdjacent 'the have sho wn plows or f dogs 6 for turning in theedges of the wrap- Qp ers as t hecans approach theldeli very endofitheimachineJ 'inechanisrn for feeding and presenting the wrappers vis "not A illustrated." f. r 1 '1 r ",At'the rearend; of the machine,directly in transverse alignment; with the axes of the .1 pulleys 7 'and8,}Ihave shown at each side of the, path of the cans, the'deliyery'rollers 45, 4; 3 These are mounted each on a vertical 36 sharesol-spindle 20,'see Figure Leach shaft vQicfarijyi 1 1g a bevelled gear21 se'cured thereto,

which inturnengagesa smallbevelled gear I 22Lsecuredjto the pulleys'T,8'ortl1e shaft 9 e5 her'eoffi p 1 sh'owi Dresser roller's'i25, '25v:whicli' are yield- Arse-wed a teases rollers l have Kingly mhu nted 'toswing; iii a 1 transverse Qplane; 'iIii the' formQofjtheinvention shown{these f rollers are mounted Eon: vertical spin :d1es '2 6,";eafcl1 ofwliiclrhas a hearing at. its

lower end 1 027 in a suitable bearing block Tsecuredflto the nam in any'suitable manner bya bolt 28. QThe spindles are mounted 3 atftheirilpper'ends;inbrackets QQ'secured y to*the' 'frain'eby'bolts 30,'see*Figures-7and&

the brackets bein slottedor, provided with slightly elongatedapertures32, which permit'a slight transverse play, so that the rollersyield outwardly response to theypressure of thefrollers against the cansor the reaction the same.

- Intlie'form of the invention shown, each which groove engaged bya'spring wire 36 which encircles the sleeve, and which, as shown, isbent back upon itself substantially in the form of'afU,being also loopedat 37 and 38 providing for engagementby screws, by means of whiclr'it issecured to the bracket. 'Pliesp1'ings'36tend to thrust the rollers orthe upper ends of the spindles in- )vardly toward the center of theways. The sleeve 34 may also act'as a bearingfor the roller spindle. Thespindle is held-in posi-' ,tion in the form of-the invention shown, by-a clip 40, see Figures 7 and 8, securedlby screws'l and 42. The clipmay be removed i1'0l11 the path of the spindle by removing either oneof: the screws 41' and 42, and swinging the clip to the right or" left.The spi n('lle and roller are r'e'l'noved'by raising them 'untilthespindle isreleased fronithe bearing 27. y

The delivery roller 4 and the presser roller 25 are ofinterest'. Theserollers are formed "with a wood or metal body, or. center portion A4,45. Referring to thercspective rollers, which may be formed on orsecured to the zrespective spindles 20 and 26, the body or made of asingle, piece of matcrial, in that i there 'is no tendency for ittoerack or break into segments after the manner'of such rollers.-The'ou-tcrca's1ng or jacket hasnot only great flexibility but"considerable tensile strength, and; the" 111110.1 f.portion havinggreater resistive block rubberi Having particularpreference to Figure4-, it will be noted that the-'pifesser roller is ofincrea'sdflizimeter'or' bellied out centrally,

qualities-g than ordinary enlarged portion of'the corebeing indicated byreference eharaeter'48, and the enlarged portion of tllQOlllTBldiameter-by reference character 50, It will befrirt-her noted from Fiures that r the enlarged portion' of the "roller," corresponds inlength,- measured in the direction of the z i:-iis,*to'-the: diameter ofthedepressed portions of the "cans' bein'g treated," tliouglrthemachine: is capable of treating can's, having aconsiderable variationas-to'the 'd-iameter, the import-ant point andifor thegreaterportioniof its lengtlnthe ill being that the enlarged or belliedportion of the rollers '25, in treating the cans with the depressed orhollowed out head portions, shall enter into the hollows or depressions,pressing and setting the folded edges of the Wrappers 56 which cover theends of the cans, it being understood that the edge portions of thewrappers be coat-ed with paste or cement so that one function oi thepresser rolls is not only to press the creases in the materials,completing the folding 0P1 oration but to press" the layers of papertogether, giving the paste or cement an opportnuity to set. The presserrollsthus formed and mounted, enter and completely fill and contact withthe entire end surfaces of the cans, engaging the entire area of thedepressed portion, even though there be some considerable variation inthe diameters of the cans Wrapped, the variation being provided for bythe flexibility or" the roller, and further the cans dwell for a shorttime between the presser rollers providing for setting of the cementandcreases.

In the operation of the machine the cans are led to the Ways in anysuitable manner, a supply of Wrappers being maintained in or directlybeneath the path of the cans as described inthe patent above cited, orin any preferred Way. The cans may be touched with adhesive or other isecaused to take up the Wrappers as they pass, the rolling motion of thecans causing the Wrappers to be rolled about thecans. In this operationWrappers are, as aforesaid, provided which are of greater Width than thelength of the cans, so that when the W ppcrs are rolled about the cansas 'd scribed, the edge portions project beyond the cans. These edgeportions are folded in by contactvvith the plows 6, see Figure 1,immediately following which operation thecans are raised by passing overthe hill 19 on the pivoted support 10, in \vhicli portion of their paththey are held between the short tightdelivery belt 3, and the supportit), w ch is spring-pressed by the springs 13,. as pre viouslydescribed, and the action of the delivery belt 3 carries, and to someextent,

forces the cans into the bite of the delivery 7 having enlarged centralportion adapted I to receive and engage the. cans, pressing rollers lwhich engage the cans by their end surfaces, pressing them tosuclrextent as the straight formation of the rollers permits and holdingthem in the elevated position to which they are raised bythe support 10,so that while gripped by the rollers they are out of contactvf'ithfthesupport and the Ways, and thus relieved trorn any "tend y to rotate asthebelt 3 turns upward immediately beyond the bite oi the deliveryrollers 4. The delivery rollers & in turn deliver the cans thus Wrappedone at a time to the bite of thepresser' rollers 25, Which as aforesaidenter the depressions in the llGllOlV-a headed cans, engaging the entiresurface of the hollowed portion or the Wrapper folded over the same,completing the pressing operation asto the folded ends o l the Wrappers,and setting the cement.

It is further of interest that the resser rolls, not being driven, haveno feeding or delivery actioinso that each can dwells in the bite ofthese rollers until it is pushed forward by the can next delivered bythe delivery rollers. This dwell gives an opportunity for the paste toset, and completes pressing of the folded portion. The yielding actionof the rollers provides for a variation of the length of the cans, andequalizesthe pressure applied. It is of interest that the short 7delivery beltfl is placed slightly above the level of the feed belt :2,engaging the as they are raised on the hill 19 of the support withconsiderable tension,1nore than be applied by the longer belt anddeliveredahnost positively by the action of the belt and the supportintothe bite of the delivery rollers l.

1 have thus described specifically and in detail a portion of a inachineembodying my invention in the preferred form, in order that the natureand operation of the same having their axes. vertically placechi andmeans for rotating said rollers to press the Wrapper on the ends of thecans and deliver the cans. v i

2. In a machine for rapping cans, ways,1a' support having a raisedportion to raise the cans before theways, means for feeding. the

cans along the Ways and. support, means for folding the edges of theWrappers over the ends of the cans, and a pair of presser rollers placedwith their axes vertical and their end portions as they are deliveredfrom the loite of the feeding mean-s. a a I 3. In amachine for, Wrappingcans, an elongated support, an endless belt for feeding the cans alongthe support, folding means at the sides of the supportto engage and foldthe edge portions of wrappers over the ends of the cans, means forraising the cans as they 'passthefolding means, a pair of deliveryrollers having their axesavertically placed ,to engagejthe cans by the'endsur- 7 fold the edge portions of wrappers over the ends of the cans,means for raising the cans as they pass the folding means, a pair ofdelivery rollers having their axes vertically placed to engage thecansby the endsurfaces, and means for driving said rollers, advancingthe cans and holding them in (raised position so that they are out ofcontact with thesupport, and a pair of presser rollers beyond thedelivery rollers having their axes likewise upright and adapted toreceive the cans from the bite of the delivery rollers, the presserrollers being idle, so that each can dwells therein until it is pushedforward by the next can delivered by the delivery rollers, both sets ofrollers serving to press and set the Wrapper where it is folded over theends of the cans.

5. In a machine for wrapping cans, an elongated support, an endless beltfor feeding the cans along the support, folding means at the sides ofthe support to engage and fold the edge portions of wrappers over theends ofthe cans, means for raising the cans after they pass the foldingmeans, a pair of delivery rollers having their axes vertically placed toengage the cans by the end surfaces, and means for driving said rollers,advancing the cans and holding them in raised position so that they areout of contact with the support, and a pair of presser rollersbeyond thedelivery rollers having their axes likewise upright and adapted toreceive the cans from the bite of the delivery rollers, thepresserrrollers having a flexibly supported surface and being ofenlarged dimension intermediately, so that they enter and fillthe'hollows of cans having depressed end portions, pressing and settingthe wrapper' Where it is folded over the ends of the cans.

6..In a 'machine for wrapping cans, an elongated support, an endlessbelt for feeding the cans along the support, folding xport,.aseeond feedbelt above and co-operati'ng with said, support, delivery-rollers hav- 7ing their axes vertically placed, receiving the cans from the raisedportion of the support engaging them by their ends and advancing them atthe higher level to which they have been raised, and means for drivingsaid rollers, the rollers serving to press and set the wrappers wherethey are folded over the ends of the cans.

7. Ina machine for wrapping cans, an elongated support, an endless beltfor feeding the cans along the support, folding means adjacent thesupport to engage and fold the edges of the can wrappers over the endsof the cans, a yielding support beyond the folding means having a raisedportion to raise the cans above the level of the support, a second feedbelt above and co-operating with said support, delivery rollers havingtheir axes vertically placed receiving the cans from the raised portionof the support, engaging them by their "ends and advancing them at thehigher level to which they have been raised, means for driving saidrollers, and presser rollers likewise mounted with their axes vertical,so that they engage the ends of the cans, the presser rollers beingmounted to yield laterally and being of increased dimension as to theircentral portion, so that they enter the hollows in the ends of the canshaving depressed end portions, pressing and setting the can wrapperwhere it is folded over the end of the can. I

8. In a machine for wrapping cans, an elongated support, an endless beltfor feeding the cans along the support, folding means adjacent thesupport to engage and fold the edges of the can wrappers over the endsof the cans, a yielding support beyond the folding means having a raisedportion to raise the cans above the level of the support, a second feedbelt above and co-operating with said support, delivery rollers havingtheir axes vertically placed receiving the cans from the raised portionof the support, engaging them by their ends and advancing them at thehigher level to which they have been raised, means for driving saidrollers, and presser rollers likewise mounted with their axes vertical,so that they engage the ends of the cans, the presscr rollers beingmounted to yield laterally and being of increased dimension as to theircentral portion, so that they enter the hollows in the ends of the canshaving depressed end portions, the presser rollers being idle, so thateach can dwells therein until advanced the pressure of the can nextadvanced by the delivery rollers.

Signed by me at Elba, Genesee County,

State of'New York, this 20th day of August, I

DELBERT 1).. PARKER.

